686996821 (number)

686996821 is an odd 9-digits composite number following 686996820 and preceding 686996822. In scientific notation, it is written as 6.86996821 × 10^8. The sum of its digits is 55. It has a total of 4 prime factors and 16 positive divisors. There are 562560768 positive integers (up to 686996821) that are relatively prime to 686996821.

Interesting facts

Basic properties

Name

Name six hundred eighty-six million nine hundred ninety-six thousand eight hundred twenty-one

Notation

Scientific notation 6.86996821 × 10^8
Engineering notation 6.86996821 × 10^6

Prime Factorization of 686996821

Prime Factorization 7 × 23 × 1009 × 4229

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 686996821
Product of the distinct prime numbers

The prime factorization of 686996821 is 7 × 23 × 1009 × 4229. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 7, 80, 100, 598, 489, 4246, 711, 76631, 34091, 164570, 441163, 5808796, 325767, 99501340, 40770648, 901668262, 854094709, 4327610121, 7548756275

Basic calculations (n = 686996821)

Multiplication

n×y
n×2 1373993642
n×3 2060990463
n×4 2747987284
n×5 3434984105

Division

n÷y
n÷2 343498410.5
n÷3 228998940.33333
n÷3 171749205.25
n÷5 137399364.2

Exponentiation

ny
n2 471964632064106041
n3 3.2423820185248E+26
n4 2.2275061391941E+35
n5 1.5302896363843E+44

Nth Root

y√n
2√n 26210.624200885
3√n 882.3717104132
4√n 161.89695550221
5√n 58.531674055628

Divisors of 686996821

1, 7, 23, 161, 1009, 4229, 7063, 23207, 29603, 97267, 162449, 680869, 4267061, 29869427, 98142403, 686996821

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -686996820
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 686996821 can be divided by 16 positive divisors. The sum of these divisors (counting 686996821) is 1, the average is 0.0625.

Base conversion 686996821

Base System Value
2 Binary 101000111100101011110101010101
3 Ternary 1202212201001110201
4 Quaternary 220330223311111
5 Quinary 2401332344241
6 Senary 152100420501
8 Octal 5074536525
10 Decimal 686996821
12 Duodecimal 1720a7731
16 Hexadecimal 28f2bd55
20 Vigesimal aedec11
36 Base36 bd0q51

Cryptographic Hash Functions

md5 e7fbcb5982d3fd5357bbf70b9cbd9fdd
sha1 1295f9513e7408facc1015dfdae4a49f423f04b7
sha256 01a78b60272a861ded2cb0b0f12a9c3fa68f21cef00ca4e8eb6e29425aca9b83
sha512 a17e90701dfdfaff26dd14d01e161cef7fc9a3635c5a008eae104ed98d830b9fd7365f2fb909fd32d15be912397ef695c6fc69f8ee93b689a2705bf13c2da1e3
ripemd-160 7a020b6f17519b94c8bf3890cfb580fa08f560b0

686996821 as geometric shapes

Circle

Radius = n
Diameter 1373993642
Circumference 4316528331.7863
Area 1.4827206208468E+18

Sphere

Radius = n
Volume 1.3581658039372E+27
Surface area 5.9308824833872E+18
Circumference 4316528331.7863

Square

Length = n
Perimeter 2747987284
Area 471964632064106041
Diagonal 971560221.5654

Cube

Length = n
Surface area 2831787792384636246
Volume 3.2423820185248E+26
Space diagonal 1189913398.6103

Equilateral Triangle

Length = n
Perimeter 2060990463
Area 2.0436668052765E+17
Altitude 594956699.30515

Triangular Pyramid

Length = n
Surface area 2.0436668052765E+17
Volume 3.8211838541603E+25
Height 323853407.18847